Flurtamone, 100 µg/ml, Ethyl acetate, 1ml

Perfluoro-n-[1,2-13C2]decanoic acid, 1.2ml x 50ug/ml, methanol

Chlorpyrifos, 10.0 µg/ml, Ethyl acetate, 10ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)